2231321461 has 2 divisors, whose sum is σ = 2231321462. Its totient is φ = 2231321460.

The previous prime is 2231321459. The next prime is 2231321479. The reversal of 2231321461 is 1641231322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1514688561 + 716632900 = 38919^2 + 26770^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231321461 - 2¹ = 2231321459 is a prime.

It is a super-3 number, since 3×2231321461³ (a number of 29 digits) contains 333 as substring.

Together with 2231321459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231321761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115660730 + 1115660731.

It is an arithmetic number, because the mean of its divisors is an integer number (1115660731).

Almost surely, 2^2231321461 is an apocalyptic number.

It is an amenable number.

2231321461 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231321461 is an equidigital number, since it uses as much as digits as its factorization.

2231321461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 2231321461 is about 47236.8654866091. The cubic root of 2231321461 is about 1306.7345706575.

Adding to 2231321461 its reverse (1641231322), we get a palindrome (3872552783).

The spelling of 2231321461 in words is "two billion, two hundred thirty-one million, three hundred twenty-one thousand, four hundred sixty-one".